Steve,

I recommend that you include this concern in your Risk Assessment to
determine whether the LED color is critical to safety or not. You can then
record your level of risk and compare it to your risk tolerance. Include
all possible failure modes, such as LED failure, incorrect polarity, driver
failure, errors in programmable devices (logic) responsible for displaying
the correct indicator color, and so on.

-Doug

Douglas E Powell
Laporte, Colorado, USA
[email protected]
LinkedIn <https://www.linkedin.com/in/coloradocomplianceguy/>

(UTC-06:00, US-MDT)


On Fri, Jun 23, 2023 at 12:52 PM Steve Brody <[email protected]> wrote:

> Experts,
>
> I have a client who would like to use a single LED capable of multiple
> colors instead of a mutli-lamp light tower that we are used to seeing.
>
> It can produce the required colors in accordance with 60204-1, Table 4.
>
> I have read through 60204-1 (machinery) safety and 61310-1 (requirements
> for visual, acoustic, and tactile signals) and did not find anything that
> prohibits the use of a single LED.
>
> Thoughts?
>
>
>
> Steve Brody
> [email protected]
> C - 603 617 9116
> -
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